How to Install Custom Recovery, Unlock bootloader & Root OnePlus One

Today, I would detail you
guys on how to install custom recovery, unlock bootloader and also root OnePlus
One smartphones. I would first start with, how you can unlock the bootloader of
OnePlus One before we would then proceed to how you can install custom recovery
and finally, rooting of OnePlus One smart phones.

How to Unlock Bootloader
of OnePlus One

Step 1» Firstly, download the ADB and fastboot file via here
and extract the folder to the desktop screen of your computer.

Step 2» Then switch off your phone and boot it to fastboot
mode. To boot to fastboot mode, simply hold volume up + power, and you
would notice a text indicating “fastboot” which shows that
your phone is in fastboot mode.

Step
3» Then connects the
OnePlus One smartphone to your computer with the use of USB cable.

Step
4» Then open a command
prompt window on the ADB folder by holding shift button, then right click on
the white space of the folder and then click on “Open command window here”

Step
5» Then on the window,
enter the below command prompt

fastboot
devices

With the above command, you
would see the list of connected device on your computer, so your device serial
number should appear on the list.

Step 6» After the above procedure, then unlock the bootloader
of your devic by inputing the below command prompt.

fastboot oem unlock

Step 7» Once the above command prompt has run successfully,
then run the below command prompt.

fastboot reboot

Once you have entered the
above command, the device would then take few mintues to reboot and you can now
adjust the below settings;

To Enble USB Debugging- Move to settings » About Phone » then tap on Build
number 7 times. This would automatically enable all the developers’ option,
then you can go back and enable USB debugging via developers option.

To Disable CM Recovery
Protection- under those same
developers options in settings, simply disable “Update recovery with system updates”.

Finally,
the bootloader of your OnePlus One smartphone is unlocked; you can now proceed
to the next stage of the guide on how to install custom recovery on OnePlus One.

Step 2» After you have downloaded the file, rename it to recovery.img
and move the img file to the ADB folder that you downloaded and extracted on
your desktop screen, when unlocking the bootloader of your device.

Step 3» Then switch off the phone and boot to fastboot mode,
just as explained previously.

Step 4» Open new command prompt and input the below command:

fastboot flash recovery
recovery.img

Step 5» The above command would help to flash the TWRP, once
the flash is complete, then input the below command:

fastboot reboot

This process would reboot
your device, and it would take few mintues, once the reboot is completed, the
TWRP would be installed successfully. Now we can precede to the last stage of
the guide on how to root your OnePlus One smartphone.